Patent · US Active

Multi-tonal one step dyes III

US9402797B2 · kind B2 · utility

2Cited by

0References

16Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Constanze Neuba · Grevenbroich, DE
Frank Janssen · Amsterdam, NL

Key dates

Filing date	Aug 27, 2015
Grant date	Aug 2, 2016
Priority date	—
Expiry date	Aug 27, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/884
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A cosmetic agent (A) is applied to the fibers and is allowed to act for a period of 30 seconds to 30 minutes, after which a cosmetic agent (B) is applied to the keratinic fibers, which continue to be acted on by agent (A). Both agents (A) and (B) are allowed to act for a period of 5 to 45 minutes, after which the agents (A) and (B) are rinsed out. Agent (A) (a1) contains no oxidation dye precursors of the developer type, (a2) contains one or more oxidation dye precursors of the coupler type, (a3) has a pH of 8.0 to 12.0, and agent (B) (b) contains one or more oxidation dye precursors, (b2) contains one or more oxidizing agents, and (b3) has a pH of 8.0 to 12.0.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.